Celebrate yourself. In moth form! No matter what you're partying about, I promise it will be even better as a moth! Birthday? Birthday moth! New haircut? That new haircut, but on a moth! New pupae just hatched from those eggs you laid last week on the stem of that geranium? MOTH!
Imagine an infinite number of alternate dimensions, sliced thin like salami and all layered together in a delicious sandwich of universes. In these parallel strata of time and space, the Squishables are very, very different. Squishable Alter Egos are all the Squishables that might have been (and almost certainly still are...somewhere).